From: Hsin-Yi Wang Date: Wed, 20 Dec 2023 22:13:11 +0000 (-0800) Subject: drm/panel-edp: use put_sync in unprepare X-Git-Tag: microblaze-v6.10~28^2~28^2~12 X-Git-Url: http://git.monstr.eu/?a=commitdiff_plain;h=49ddab089611ae5ddd0201ddbbf633da75bfcc25;p=linux-2.6-microblaze.git drm/panel-edp: use put_sync in unprepare Some edp panel requires T10 (Delay from end of valid video data transmitted by the Source device to power-off) less than 500ms. Using autosuspend with delay set as 1000 violates this requirement. Use put_sync_suspend in unprepare to meet the spec. For other cases (such as getting EDID), it still uses autosuspend. Suggested-by: Douglas Anderson Fixes: 3235b0f20a0a ("drm/panel: panel-simple: Use runtime pm to avoid excessive unprepare / prepare") Signed-off-by: Hsin-Yi Wang Reviewed-by: Douglas Anderson Signed-off-by: Douglas Anderson Link: https://patchwork.freedesktop.org/patch/msgid/20231220221418.2610185-1-hsinyi@chromium.org --- diff --git a/drivers/gpu/drm/panel/panel-edp.c b/drivers/gpu/drm/panel/panel-edp.c index cd05c76868e3..7d556b1bfa82 100644 --- a/drivers/gpu/drm/panel/panel-edp.c +++ b/drivers/gpu/drm/panel/panel-edp.c @@ -429,8 +429,7 @@ static int panel_edp_unprepare(struct drm_panel *panel) if (!p->prepared) return 0; - pm_runtime_mark_last_busy(panel->dev); - ret = pm_runtime_put_autosuspend(panel->dev); + ret = pm_runtime_put_sync_suspend(panel->dev); if (ret < 0) return ret; p->prepared = false;